[sdiy] Power Supply Completed

[Scott Stites]

Thanks for posting this!  Where did you get your transformers?

Cheers,
Scott

----- Original Message -----
From: "Michael Ruberto" <frankentron at hotmail.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, June 18, 2005 7:24 PM
Subject: [sdiy] Power Supply Completed


> Today I got the sucker working. Beware, sometimes brand new MOVs EXPLODE
in
> your face! I guess it must have been defective...
> Anyway the PSU is a dual tracking 15V with an 18.5V output for use with
> modules that have onboard regulators and the SEM VCO I have in the design
> stage. I have not load tested it yet but my tests of the tracking circuit
> have been better than expected. I calculated a 0.1% error between the
> outputs.
> here's the schematic:
>
> http://frankentron.freezope.org/source/diy_blue/images/PSU_REV1.gif
(29,281
> bytes)
>
> Here are some pics:
>
> http://frankentron.freezope.org/source/diy_blue/images/PSUPCB.jpg
(35,043
> bytes)
>
> http://frankentron.freezope.org/source/diy_blue/images/PSU1.jpg   (33,269
> bytes)
>
> http://frankentron.freezope.org/source/diy_blue/images/PSU2.jpg  (57,381
> bytes)
>
> As you can see from the last image it's not a looker. The chassis and
> trannies are from an old ionic air purifier I got from the garbage. I had
to
> steel wool the heck out of the box to make it shiny again. I mounted
binding
> posts for the outputs so I can use it with a breadboard setup considering
> none of the rest of the synth has been built yet. I got juice though, and
> its a start!
>
> M. A. Ruberto
>
>